0.51 Ct. Emerald from Colombia

This listing describes a single, transparent green emerald weighing 0.51 carat, cut in a classic emerald cut, with dimensions of 7.12 by 4.40 by 2.13 millimeters. The gem exhibits an intense color intensity and an excellent polish, combined with a clarity grade of very slightly included, evaluated at eye level. The stone retains standard enhancement, consistent with trade practice for emeralds, and its origin is Colombia, a source long recognized for producing gems with vivid, saturated green tones. The proportions of the emerald cut have been executed to emphasize the depth of color while maintaining table size that conveys optical clarity, and the overall presentation aligns with the exacting standards of The Natural Emerald Company.

The geological history of this emerald stretches back millions of years, through a sequence of tectonic events and fluid movements that created the precise chemical and physical environment required for emerald formation. In the Colombian deposits, emeralds are typically the product of rare interactions between silica rich host rocks and beryllium bearing fluids that originate from nearby granitic intrusions, combined with chromium and vanadium that derive from mafic or ultramafic units or from organic rich shales. Under conditions of elevated temperature and pressure, metal bearing hydrothermal fluids migrated through fractures and bedding planes, depositing beryllium and chromium in narrow, chemically favorable zones. Over geological time, these solutions cooled and precipitated beryllium aluminum silicate crystals, trapping trace amounts of chromium and vanadium within the crystal lattice, and imparting the green chroma that defines a true emerald. The crystal that was later fashioned into this 0.51 carat stone grew slowly, with microscopic inclusions and fluid pockets becoming part of its internal fabric, features that are typical of natural emeralds and that contribute to their gemological identity. Subsequent uplift and erosion exposed the host rocks, and weathering liberated pockets of gem material, which then passed into the hands of miners and lapidaries who would eventually cut, polish, and prepare the piece for assessment.

The finished gemstone presents as a disciplined example of how natural formation and skilled cutting converge. Its emerald cut preserves the stone’s color depth, while the very slightly included clarity grade, observable at eye level, indicates the presence of internal characteristics consistent with natural growth, without detracting from the gem’s visual performance. The intense color intensity is most apparent when viewed face up under balanced light, and the excellent polish enhances the stone’s luster and the crispness of its step facets. For setting and wear, this stone’s moderate dimensions and low profile depth make it adaptable to a variety of fine jewelry designs where the color can be shown to advantage, and where the standard enhancement should be considered in choice of mounting and in routine care. As presented by The Natural Emerald Company, this emerald is documented with origin information and assessment notes, providing a clear account of its gemological attributes and its deep time origin.